Search a number
-
+
68198506023 = 3160914128549
BaseRepresentation
bin111111100000111100…
…101001111000100111
320112000212112001201110
4333200330221320213
52104132304143043
651155134400103
74633010510424
oct774074517047
9215025461643
1068198506023
1126a17307a7a
1211273660033
13657b15359b
14342d670d4b
151b923aeb33
hexfe0f29e27

68198506023 has 8 divisors (see below), whose sum is σ = 90987862000. Its totient is φ = 45437410368.

The previous prime is 68198505989. The next prime is 68198506027. The reversal of 68198506023 is 32060589186.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-68198506023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68198506027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7059448 + ... + 7069101.

It is an arithmetic number, because the mean of its divisors is an integer number (11373482750).

Almost surely, 268198506023 is an apocalyptic number.

68198506023 is a deficient number, since it is larger than the sum of its proper divisors (22789355977).

68198506023 is a wasteful number, since it uses less digits than its factorization.

68198506023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14130161.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 68198506023 in words is "sixty-eight billion, one hundred ninety-eight million, five hundred six thousand, twenty-three".

Divisors: 1 3 1609 4827 14128549 42385647 22732835341 68198506023